/*
 * Copyright 2022 Bytedance Ltd. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.bytedance.bitsail.connector.legacy.hudi.sink.transform;

import org.apache.flink.streaming.api.datastream.DataStream;
import org.apache.flink.table.data.RowData;

/**
 * Transform source stream to target stream before writing.
 */
public interface Transformer {

  /**
   * Transform source DataStream to target DataStream.
   *
   * @param source
   */
  DataStream<RowData> apply(DataStream<RowData> source);

}
